There is a substantial amount of material on William Olive Sr and Jr on the genealogical sites. Several different people who are researching their families have files on www.ancestry.com that give information on the Olives. I saw several generations, including at least 3 generations before Olive Sr.
Ancestry is a subscription site, but they do have a "free" site - www.rootsweb.com. If you search on rootsweb you probably can see many of these files, although without as much detail.
Although you probably already know the above, I thought it better to share, in case you have not tried it as yet.
Best regards
Don Parker